package com.swotxu.config.condition;

import org.springframework.beans.factory.config.ConfigurableListableBeanFactory;
import org.springframework.beans.factory.support.BeanDefinitionRegistry;
import org.springframework.context.annotation.Condition;
import org.springframework.context.annotation.ConditionContext;
import org.springframework.core.env.Environment;
import org.springframework.core.type.AnnotatedTypeMetadata;
/**
 * 判断是否Linux
 * @author apink
 */
public class LinuxCondition implements Condition {
	/**
	 * ConditionContext 判断条件能使用的上下文（环境）
	 * AnnotatedTypeMetadata	注释信息
	 */
	@Override
	public boolean matches(ConditionContext context, AnnotatedTypeMetadata metadata) {
		// 1.能获取到ioc使用的beanfactory
		ConfigurableListableBeanFactory beanFactory = context.getBeanFactory();
		// 2.获取类加载器
		ClassLoader classLoader = context.getClassLoader();
		// 3.获取当前环境信息
		Environment environment = context.getEnvironment();
		// 4.获取bean定义的注册类
		BeanDefinitionRegistry registry = context.getRegistry();

		// 可以判断容器中bean注册情况，也可以给容器中注册bean
		boolean definition = registry.containsBeanDefinition("person");

		String property = environment.getProperty("os.name");
		System.out.println("LinuxCondition -> " + property);
		return property.contains("linux");
	}

}
